Tres chic!

Reese Witherspoon and her brand-new bangs hit the red carpet for the This Means War premiere in London Monday.

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The 35-year-old actress donned a Louis Vuitton mini dress adorned with shimmering green sequins while showing off her legs in the number's swingy ruffled skirt paired with towering black Christian Louboutin heels.

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Witherspoon's fun and flirty look pays homage to her character in the upcoming action/comedy flick, where she plays the object of two men's (Chris Pine and Tom Hardy) affection.

Also starring in the movie that hits theaters February 14? Witherspoon's real-life BFF, Chelsea Handler.

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Last week, Witherspoon debuted her fresh set of eye-skimming bangs -- a look that we last saw on her shortly after she and Ryan Phillippe divorced in 2007.

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